San Bernardino County's traffic division said it maintains more than 100,000 traffic signs, pavement markings and guardrails across about 25,100 miles of county‑maintained roads and described how its in‑house sign shop designs and produces replacement signs.

Traffic division staff described four general sign types produced in the shop—guide (street name) signs, construction signs, warning signs and regulatory signs such as speed limits. Workers said they develop designs on a computer, transfer the design to material, apply the material to an aluminum blank and finish the sign with a protective covering referenced in the recording as "11 60." Staff said new HP Latex printers allow the sign shop to produce custom signs the same day, shortening what previously took up to two weeks when components were sent to external vendors.

Staff described field work to replace damaged or stolen signs in extreme heat and wind, sometimes at temperatures above 110 degrees. The shop said the protective covering helps shield signs from sun damage and makes graffiti easier to remove. Traffic division speakers said the shop's work covers remote areas from Needles to Trona and other county locations.